22 lines
632 B
Rust
22 lines
632 B
Rust
use crate::handling::Script;
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use alloc::boxed::Box;
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pub trait WithVolatile {
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fn has_volatile(&self, script_name: &str) -> bool;
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fn add_volatile<'a, 'b>(&'a self, script: Box<dyn Script>) -> &'b dyn Script;
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fn remove_volatile(&self, script: &dyn Script);
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fn get_volatile_script(&self, script_name: &str) -> Option<&dyn Script>;
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}
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pub fn get_volatile_as<'a, T>(v: &'a dyn WithVolatile, script_name: &str) -> Option<&'a T>
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where
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T: Script + 'static,
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{
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let s = v.get_volatile_script(script_name);
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if let Some(s) = s {
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Some(s.as_any().downcast_ref::<T>().unwrap())
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} else {
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None
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}
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}
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